The main reason I thought using another server  , instead of tomcat  , is my application  is high transactional (about 100 per second)... I tested with Jmeter and it could handle about 60 processes per second . (more than that it crashed) ... so if you can guide me to tune tomcat in a way that
work with these number of transactions , I really prefer to use it , ( so better than trying a new one).